Base | Representation |
---|---|
bin | 10110001010111010… |
… | …011100011100011001 |
3 | 2021110001002021201100 |
4 | 112022322130130121 |
5 | 342223141210040 |
6 | 14534104342013 |
7 | 1501630446603 |
oct | 261272343431 |
9 | 67401067640 |
10 | 23805413145 |
11 | a106598268 |
12 | 4744474909 |
13 | 2324bb8ba7 |
14 | 121b866173 |
15 | 944da5b30 |
hex | 58ae9c719 |
23805413145 has 12 divisors (see below), whose sum is σ = 41262716196. Its totient is φ = 12696220320.
The previous prime is 23805413119. The next prime is 23805413183. The reversal of 23805413145 is 54131450832.
23805413145 is a `hidden beast` number, since 2 + 3 + 80 + 541 + 31 + 4 + 5 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 4062915081 + 19742498064 = 63741^2 + 140508^2 .
It is not a de Polignac number, because 23805413145 - 218 = 23805151001 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264504546 + ... + 264504635.
It is an arithmetic number, because the mean of its divisors is an integer number (3438559683).
Almost surely, 223805413145 is an apocalyptic number.
It is an amenable number.
23805413145 is a deficient number, since it is larger than the sum of its proper divisors (17457303051).
23805413145 is a wasteful number, since it uses less digits than its factorization.
23805413145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 529009192 (or 529009189 counting only the distinct ones).
The product of its (nonzero) digits is 57600, while the sum is 36.
Adding to 23805413145 its reverse (54131450832), we get a palindrome (77936863977).
The spelling of 23805413145 in words is "twenty-three billion, eight hundred five million, four hundred thirteen thousand, one hundred forty-five".
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